* hb_ot_layout_has_kerning:
* @face: The #hb_face_t to work on
*
- * Tests whether a face includes any kerning data. Examines the 'kern' table.
+ * Tests whether a face includes any kerning data in the 'kern' table.
+ * Does NOT test for kerning lookups in the GPOS table.
*
* Return value: true if data found, false otherwise
*
* hb_ot_layout_has_machine_kerning:
* @face: The #hb_face_t to work on
*
- * Tests whether a face includes any state-machine kerning.
+ * Tests whether a face includes any state-machine kerning in the 'kern' table.
+ * Does NOT examine the GPOS table.
*
* Return value: true if data found, false otherwise
*
* Tests whether a face has any cross-stream kerning (i.e., kerns
* that make adjustments perpendicular to the direction of the text
* flow: Y adjustments in horizontal text or X adjustments in
- * vertical text).
+ * vertical text) in the 'kern' table.
+ *
+ * Does NOT examine the GPOS table.
*
* Return value: true is data found, false otherwise
*